My son is 22.5 years old. His new girlfriend just moved in with him and his twin brother. She is 19. She constantly clings to my son and anything she wants to say to me or anyone else she whispers in his ear and he asks or says it for her. She also makes my other sons girlfriend feel unwelcome when she visits. Whats wrong with this girl. Also, she is my sons first sexual partner but hes not her first. Please help as im loosing my patience with this girl.